Research methods in social science by Malone, Tim

Encyclopedia of research design

Available for UP System via Sage Knowledge

Doing qualitative research by Crabtree, Benjamin F., Miller, Benjamin, F.

Designing and conducting mixed methods research by Creswell, John W., Plano Clark, Vicki L.

Foundations of mixed methods research integrating quantitative and qualitative approaches in the social and behavioral sciences by Tashakkori, Abbas, Johnson, Burke, Teddlie, Charles

The Oxford handbook of multimethod and mixed methods research inquiry

An applied guide to research designs quantitative, qualitative, and mixed methods by Edmonds, W. Alex, Kennedy, Thomas D.

Research design qualitative, quantitative, and mixed methods approaches by Creswell, John W., Creswell, J. David

Making sense in the social sciences by Northey, Margot

Research design quantitative, qualitative, mixed methods, arts-based, and community-based participatory research approaches by Leavy, Patricia 1975-